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              <div class="mask"></div>

<ul class="img-list">
  <li><a href=""><img src="https://images.unsplash.com/photo-1467189386127-c4e5e31ee213?dpr=1&auto=format&fit=crop&w=767&h=511&q=80&cs=tinysrgb&crop=" alt=""></a></li>
  <li><a href=""><img src="https://images.unsplash.com/photo-1463569643904-4fbae71ed917?dpr=1&auto=format&fit=crop&w=767&h=511&q=80&cs=tinysrgb&crop=" alt=""></a></li>
  <li><a href=""><img src="https://images.unsplash.com/photo-1460891053196-b9d4d9483d9b?dpr=1&auto=format&fit=crop&w=767&h=495&q=80&cs=tinysrgb&crop=" alt=""></a></li>
  <li><a href=""><img src="https://images.unsplash.com/uploads/141219200475673afcb68/f5bd8360?dpr=1&auto=format&fit=crop&w=767&h=511&q=80&cs=tinysrgb&crop=" alt=""></a></li>
  margin: 0
  padding: 0
  box-sizing: border-box

html, body
  height: 100%

  text-align: center
    width: 250px
    display: inline-block
    list-style-type: none
      width: 100%

  display: none
  position: fixed
  top: 0
  width: 100%
  height: 100%
  background: rgba(0,0,0,0.8)

    width: 100%
    max-width: 650px
    padding: 10px
    background: #fff
    position: relative
    top: 50%
    left: 50%
    transform: translate(-50%, -50%)
      width: 100%
      color: #000
      background: rgba(255,255,255,0.8)
      width: 30px
      height: 30px
      text-align: center
      line-height: 30px
      position: absolute
      top: -35px
      right: -35px
        size: 24px
        weight: bold
      border-radius: 50%
      cursor: pointer
        background: rgba(255,255,255,1)

  display: block !important

// Animation
  animation: fadein 400ms ease-in-out

@keyframes fadein
    opacity: 0
    opacity: 1

  animation: fadeout 400ms ease-in-out

@keyframes fadeout
    opacity: 1
    opacity: 0

  $('.img-list a').on('click', function(e){

    var imgLink = $(this).children('img').attr('src');

    $('.mask').html('<div class="img-box"><img src="'+ imgLink +'"><a class="close">&times;</a>');

    $('.mask').addClass('is-visible fadein').on('animationend', function(){
      $(this).removeClass('fadein is-visible').addClass('is-visible');

    $('.close').on('click', function(){
      $(this).parents('.mask').addClass('fadeout').on('animationend', function(){
        $(this).removeClass('fadeout is-visible')


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